Limit switches are on the left, back and up when it touches limit switches it will stop moving. Other side right, front and down do not have limit switch.

2. Filament unloading function:

Select utilities => select filament unloading => select unload, it will start heating the extruder, after certain rise temperature, it will beep and start to rotate feed module stepper motor, now you can unload or pull out filament.

3. Filament loading function:

Select utilities => select filament loading => select load, it will start heating the extruder, after certain rise temperature, it will beep and start to rotate feed module stepper motor, now you can load filament.

Steps 1 is for checking condition of all stepper motor, cable connecting stepper motor and a motherboard, all limit switches and limit switch connecting cables with a motherboard, X, Y & Z Allegro chips. Step 2 and 3 are for checking Cartridge heater & thermocouple cable, A or right extruder and B or left extruder. During this process if any interruption, then it’s indicated defect on the part.

Please follow the above steps. Any other problems and questions, contact us at support@mbot3d.com